Comments

Commit fad107086d5a869c1c07e5bb35b7b57a10ecf578 fixed the wrong test for MX51
as the MX51 addresses are wrong for MX50 and MX53 but now it's MX51 only,
UART_PADDR is not defined anymore when building for MX50/MX53.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>Tested-by: Steev Klimaszewski <steev@genesi-usa.com>